Hi All.I am pretty newbie in OpenGL dev.I am working on mini engine where I need to implement multiple light sources on demand.So that any objects in the scene can get one or more (or none) number of lights based on user setup .I am thinking on the best way to approach this. Doing it in a single pass inside fragment shader looks like not the best way to go as it seems to me that I will run out of instructions for a big number of lights .Also I will have to generate such a shader on the fly with inputs varying (depending on number of current active lights for this object) ? What is the industry standard approach to design such a system ? May be multi-pass rendering with each additional light written into some buffer and then blended ? Anybody can point to some refs or explanation of how this usually done?
I am using programmable pipeline with OpenGL 3.3 .
Thanks in advance.